User manual

3.  
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  2-EXT  
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 






4. 
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 DSL 


5. 
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 DSL 


6. 
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




7. 

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 
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
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
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

 Rings to Answer ()









 






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
 I: /


 




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





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 5-11 
1



2




 1-LINE 




/
3

4
 ()
/
1. 
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 2-EXT 
2. 

 

 2-EXT 


: 





 


 



3. 





 



 1-LINE 
86
 5 
THWW